DE102010017028A1 - Additive, useful for cement, which is useful in concrete industry or soil stabilization, comprises potassium chloride, sodium chloride, magnesium dichloride, magnesium oxide, ammonium sulfate, calcium chloride and activated zeolites - Google Patents

Additive, useful for cement, which is useful in concrete industry or soil stabilization, comprises potassium chloride, sodium chloride, magnesium dichloride, magnesium oxide, ammonium sulfate, calcium chloride and activated zeolites Download PDF

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Publication number
DE102010017028A1
DE102010017028A1 DE201010017028 DE102010017028A DE102010017028A1 DE 102010017028 A1 DE102010017028 A1 DE 102010017028A1 DE 201010017028 DE201010017028 DE 201010017028 DE 102010017028 A DE102010017028 A DE 102010017028A DE 102010017028 A1 DE102010017028 A1 DE 102010017028A1
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DE
Germany
Prior art keywords
additive
cement
weight
useful
chloride
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE201010017028
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German (de)
Inventor
Anmelder Gleich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KORYTOWSKI, ANDREAS, DE
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Andreas Korytowski
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Publication date
Application filed by Andreas Korytowski filed Critical Andreas Korytowski
Priority to DE201010017028 priority Critical patent/DE102010017028A1/en
Publication of DE102010017028A1 publication Critical patent/DE102010017028A1/en
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00275—Materials impermeable to vapours or gases
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/29—Frost-thaw resistance
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/34—Non-shrinking or non-cracking materials

Abstract

Additive comprises: potassium chloride (5-15 wt.%); sodium chloride (5-15 wt.%); magnesium dichloride (5-15 wt.%); magnesium oxide (10-30 wt.%); ammonium sulfate (0.5-5 wt.%); calcium chloride (10-30 wt.%); and activated zeolites (34.5-60 wt.%). An independent claim is included for cement comprising 1-4 wt.% of additive.

Description

Die Erfindung betrifft ein Additiv für Zement sowie einen Zement mit Additiv.The invention relates to an additive for cement and a cement with additive.

In der Betonindustrie wie auch im Bereich der Bodenstabilisierung ist es aus der Praxis bekannt, Zement zu verwenden, dem Additive beigemischt werden, um verschiedene Eigenschaften des Zementes zu verbessern.In the concrete industry, as well as in the field of soil stabilization, it is known from practice to use cement to which additives are added in order to improve various properties of the cement.

Das der Erfindung zugrunde liegende technische Problem besteht darin, ein Additiv für einen Zement anzugeben, mit dem die Eigenschaften des Zementes nochmals verbessert werden sowie einen Zement mit einem beigemischten Additiv anzugeben, der verbesserte Eigenschaften aufweist.The technical problem underlying the invention is to provide an additive for a cement, with which the properties of the cement are further improved and to provide a cement with a mixed additive, which has improved properties.

Dieses technische Problem wird durch ein Additiv für Zement gemäß Anspruch 1 sowie durch einen Zement mit einem Additiv nach Anspruch 3 gelöst.This technical problem is solved by an additive for cement according to claim 1 as well as by a cement with an additive according to claim 3.

Das erfindungsgemäße Additiv für Zement zeichnet sich dadurch aus, dass das Additiv folgende Bestandteile aufweist:
5 bis 15 Gew.-% Kaliumchlorid [KCl],
5 bis 15 Gew.-% Natriumchlorid [NaCl],
5 bis 15 Gew.-% Magnesiumdichlorid [MgCl2],
10 bis 30 Gew.-% Magnesiumoxid [MgO],
0,5 bis 5 Gew.-% Ammoniumsulfat [(NH4)2SO4)],
10 bis 30 Gew.-% Calciumchlorid [CaCl2],
34,5 bis 60 Gew.-% aktivierte Zeolithe.The cement additive according to the invention is characterized in that the additive has the following constituents:
5 to 15% by weight of potassium chloride [KCl],
5 to 15% by weight of sodium chloride [NaCl],
5 to 15% by weight of magnesium dichloride [MgCl 2 ],
10 to 30% by weight of magnesium oxide [MgO],
0.5 to 5% by weight of ammonium sulfate [(NH 4 ) 2 SO 4 )],
10 to 30% by weight calcium chloride [CaCl 2 ],
34.5 to 60 wt .-% activated zeolites.

Das erfindungsgemäße Additiv zeichnet sich dadurch aus, dass es die Biege-Zug-Festigkeit des modifizierten Zementes gegenüber normalem, nicht modifiziertem Zement deutlich erhöht.The additive according to the invention is characterized in that it significantly increases the bending-tensile strength of the modified cement compared to normal, unmodified cement.

Hierdurch wird eine Reduktion der Schwund-Riss-Bildung erzielt, und es wird die Druckfestigkeit des Zementes erhöht.This achieves a reduction in shrinkage cracking and increases the compressive strength of the cement.

Der mit dem Additiv versetzte Zement weißt eine höhere Frosttaubeständigkeit auf. Auch wird die Tausalzbeständigkeit deutlich erhöht.The cement added with the additive is more frost resistant. Also, the de-icing resistance is significantly increased.

Weiterhin wird eine Verringerung der Wasserdurchlässigkeit erzielt, das heißt die Impermeabilität für Wasser wird deutlich erhöht. Es hat sich gezeigt, dass der Durchlässigkeitsbeiwert (Kf-Wert) bei Zement, der mit dem erfindungsgemäßen Additiv versetzt wird, von 10–3 auf 10–8 m/s sinkt.Furthermore, a reduction in water permeability is achieved, that is, the impermeability to water is significantly increased. It has been found that the permeability coefficient (K f value) for cement, which is mixed with the additive according to the invention, drops from 10 -3 to 10 -8 m / s.

Mit dem Additiv wird erreicht, dass sich die offenen Poren des Zementes komplett schließen.The additive ensures that the open pores of the cement are completely closed.

Mit dem erfindungsgemäßen Additiv für Zement ist es möglich, beispielsweise eine Armierung im Beton zu reduzieren oder sogar wegzulassen.With the cement additive according to the invention it is possible, for example, to reduce a reinforcement in the concrete or even to omit it.

Es kann auch auf Dehnungsfugen verzichtet werden.It can also be dispensed with expansion joints.

Gemäß einer besonders bevorzugten Ausführungsform der Erfindung weist das Additiv folgende Zusammensetzung auf:
5,5 Gew.-% Kaliumchlorid [KCl],
7,5 Gew.-% Natriumchlorid [NaCl],
7,5 Gew.-% Magnesiumdichlorid [MgCl2],
15 Gew.-% Magnesiumoxid [MgO],
1 Gew.-% Ammoniumsulfat [(NH4)2SO4)],
13,5 Gew.-% Calciumchlorid [CaCl2],
50 Gew.-% aktivierte Zeolithe.According to a particularly preferred embodiment of the invention, the additive has the following composition:
5.5% by weight of potassium chloride [KCl],
7.5% by weight of sodium chloride [NaCl],
7.5% by weight of magnesium dichloride [MgCl 2 ],
15% by weight of magnesium oxide [MgO],
1% by weight of ammonium sulfate [(NH 4 ) 2 SO 4 )],
13.5% by weight of calcium chloride [CaCl 2 ],
50 wt .-% activated zeolites.

Vorteilhaft wird dem Zement 1 bis 4 Gew.-% Additiv zugesetzt. Gemäß einer besonders bevorzugten Ausführungsform der Erfindung werden dem Zement zwei Gewichtsprozent Additiv zugesetzt.Advantageously, 1 to 4 wt .-% additive is added to the cement. According to a particularly preferred embodiment of the invention, two percent by weight of additive is added to the cement.

Das erfindungsgemäße Additiv weist darüber hinaus den Vorteil auf, dass umweltschädliche Stoffe gebunden werden, so dass Materialien, wie beispielsweise Teer (Straßenbau) recycelbar sind. Zu den umweltschädlichen Stoffen gehören auch polyaromatische Kohlenwasserstoffe (PAK) oder auch Schwermetalle.The additive according to the invention also has the advantage that environmentally harmful substances are bound, so that materials such as tar (road construction) are recyclable. The environmentally harmful substances also include polyaromatic hydrocarbons (PAHs) or heavy metals.

Der erfindungsgemäße Zement mit dem erfindungsgemäßen Additiv wird vorteilhaft in der Betonindustrie oder auch in der Bodenstabilisierung eingesetzt.The cement according to the invention with the additive according to the invention is advantageously used in the concrete industry or in soil stabilization.

Claims (4)

Additiv für Zement, dadurch gekennzeichnet, dass das Additiv folgende Bestandteile aufweist: 5 bis 15 Gew.-% Kaliumchlorid [KCl], 5 bis 15 Gew.-% Natriumchlorid [NaCl], 5 bis 15 Gew.-% Magnesiumdichlorid [MgCl2], 10 bis 30 Gew.-% Magnesiumoxid [MgO], 0,5 bis 5 Gew.-% Ammoniumsulfat [(NR4)2SO4)], 10 bis 30 Gew.-% Calciumchlorid [CaCl2], 34,5 bis 60 Gew.-% aktivierte Zeolithe.Additive for cement, characterized in that the additive comprises the following constituents: 5 to 15% by weight of potassium chloride [KCl], 5 to 15% by weight of sodium chloride [NaCl], 5 to 15% by weight of magnesium dichloride [MgCl 2 ] , 10 to 30% by weight of magnesium oxide [MgO], 0.5 to 5% by weight of ammonium sulfate [(NR 4 ) 2 SO 4 )], 10 to 30% by weight of calcium chloride [CaCl 2 ], 34.5 to 60 wt .-% activated zeolites. Additiv nach Anspruch 1, dadurch gekennzeichnet, dass das Additiv folgende Zusammensetzung aufweist: 5,5 Gew.-% Kaliumchlorid [KCl], 7,5 Gew.-% Natriumchlorid [NaCl], 7,5 Gew.-% Magnesiumdichlorid [MgCl2], 15 Gew.-% Magnesiumoxid [MgO], 1 Gew.-% Ammoniumsulfat [(NH4)2SO4)], 13,5 Gew.-% Calciumchlorid [CaCl2), 50 Gew.-% aktivierte Zeolithe.An additive according to claim 1, characterized in that the additive has the following composition: 5.5% by weight of potassium chloride [KCl], 7.5% by weight of sodium chloride [NaCl], 7.5% by weight of magnesium dichloride [MgCl 2 ], 15% by weight of magnesium oxide [MgO], 1% by weight of ammonium sulfate [(NH 4 ) 2 SO 4 )], 13.5% by weight of calcium chloride [CaCl 2 ], 50% by weight of activated zeolites. Zement mit einem Additiv nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass dem Zement 1 bis 4 Gew.-% Additiv zugesetzt ist.Cement with an additive according to claim 1 or 2, characterized in that the cement 1 to 4 wt .-% additive is added. Zement nach Anspruch 4, dadurch gekennzeichnet, dass dem Zement 2 Gew.-% Additiv zugesetzt sind. Cement according to claim 4, characterized in that the cement 2 wt .-% additive are added.
DE201010017028 2010-05-19 2010-05-19 Additive, useful for cement, which is useful in concrete industry or soil stabilization, comprises potassium chloride, sodium chloride, magnesium dichloride, magnesium oxide, ammonium sulfate, calcium chloride and activated zeolites Ceased DE102010017028A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE201010017028 DE102010017028A1 (en) 2010-05-19 2010-05-19 Additive, useful for cement, which is useful in concrete industry or soil stabilization, comprises potassium chloride, sodium chloride, magnesium dichloride, magnesium oxide, ammonium sulfate, calcium chloride and activated zeolites

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010017028 DE102010017028A1 (en) 2010-05-19 2010-05-19 Additive, useful for cement, which is useful in concrete industry or soil stabilization, comprises potassium chloride, sodium chloride, magnesium dichloride, magnesium oxide, ammonium sulfate, calcium chloride and activated zeolites

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DE201010017028 Ceased DE102010017028A1 (en) 2010-05-19 2010-05-19 Additive, useful for cement, which is useful in concrete industry or soil stabilization, comprises potassium chloride, sodium chloride, magnesium dichloride, magnesium oxide, ammonium sulfate, calcium chloride and activated zeolites

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015105425A1 (en) 2014-01-13 2015-07-16 Kaba Rosmalen Holding N.V. Cement additive and cements containing said additive; process for preparing concrete and concrete products; use of the cement additive

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015105425A1 (en) 2014-01-13 2015-07-16 Kaba Rosmalen Holding N.V. Cement additive and cements containing said additive; process for preparing concrete and concrete products; use of the cement additive
NL2012081C2 (en) * 2014-01-13 2015-07-16 Kaba Rosmalen Holding N V Cement additive and cements containing said additive; process for preparing concrete and concrete products; use of the cement additive.

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